There seems to be a major problem that needs plumbing in NetherRealm Studios, but it's also a boon for the fans. The leak revealed the full character roster, the premise and even star voice actors that include the voice of Batman himself.
According to a leak posted to GameSpot's boards, Patrick Seitz will not be voicing Scorpion, as apparently Kevin Conroy will take over the role. There is currently no knowing if the former will still have a part though, as multiple versions of Scorpion, or any other playable character for that matter, will be present in Mortal Kombat 11.
Kevin Conroy has been collaborating intensely with NetherRealm Studios ever since Injustice: Gods Among Us, where he reprised his iconic role as the Batman. Naturally, since this is a leak, take it with a grain of salt, but Internet Movie Database seems to believe these claims as they have already listed Scorpion from Mortal Kombat 11 as one of Kevin Conroy's roles.
The other two celebrities will be Katee Sackhoff as Kronika and Ronda Rousey as Sonya Blade. These voice roles have not been entered to IMDB yet, so it remains to be seen just how accurate the leak will prove to be. Whatever turns out to be the case, let's hope Kevin Conroy lives up to the fame and pulls off a good "Get over here!" line.
The leak seems to be extensive, as it also revealed the plot, where a new character named Kronika will be the main antagonist. She is the goddess of time, which explains several characters appearing in multiple versions at the same time. The antagonist will apparently attempt to delete several timelines and a group of heroes will set out to stop her, which is the point we kind of saw in the announcement trailer.
It appears that NetherRealm Studios have already planned out the post-content characters as well, since the leaker posted the full base roster, as well as the Kombat Pack 1 DLC characters. Appearance of characters that were killed of in Mortal Kombat 9 at the same time as Mortal Kombat X characters confirms that there will indeed be some meddling with timelines.
Young Sonya, Johnny and Cassie Cage facing off should be quite an interesting event, just like Jacqui and Jax Briggs.